Digging through some of my old train stuff and found this Reversing Maintenance Car. I took it apart cleaned the brushes and the contact plates on the armature. I also cleaned the center pickup and wheels really well. The problem I am having is that it is sparking really bad from the center roller and wheels. I don't think it's my track because I try to keep it very clean plus non of my other locos or powered cars spark. Any any ideas would be great! Thanks in advance.
David